【单选题】数控程序编辑键中,用于程序插入的键是( )
【单选题】Which “extreme” is NOT true about the Hong Kong-Zhuhai-Macao Bridge?
A.
The drive from Hong Kong to Zhuhai or Ma is only 45 minutes due to the construction of the Hong Kong-Zhuhai-Ma Bridge.
B.
It is the world's longest cross-sea bridge.
C.
The immersed highway tube tunnel is the longest and deepest in the world.
D.
The bridge is supposed to last for at least 100 years.
【单选题】针对公交公司数据库,现需要统计每个公交公司的平均里程数,以及线路数量,以下正确的是( )
A.
SELECT company,COUNT(*),AVG(miles) FROM line GROPU BY company
B.
SELECT company,COUNT(*) FROM line GROPU BY company
C.
SELECT * FROM line GROPU BY company
D.
SELECT company,COUNT(*),AVG(miles) FROM line GROPU BY miles
【判断题】在可行性研究过程中只需要找出几种技术方案就可以了,等到需求分析的时候再去考虑成本效益问题。( )
【多选题】在中国古代封建社会中,与《君主论》中相似的观点有()。